A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Seismic upgrade design for an exhaust stack building
An exhaust stack building of a nuclear reactor facility with complex structural configuration has been analyzed and evaluated and retrofitted for seismic forces. The building was built in the 1950's and had not been designed to resist seismic forces. A rigorous analysis and evaluation program was implemented to minimize costly retrofits required to upgrade the building to resist high seismic forces. Seismic evaluations were performed for the building in its as-is configuration, and as modified for several upgrade schemes. Soil-structure-interaction, basemat flexibility and the influence of the nearby reactor building were considered in rigorous seismic analyses. These analyses and evaluations enabled limited upgrades to qualify the stack building for the seismic forces. Some of the major conclusions of this study are: a phased approach of seismic analyses, utilizing simplified models to evaluate practicable upgrade schemes, and, then incorporating the most suitable scheme in a rigorous model to obtain design forces for upgrades, is an efficient and cost- effective approach for seismic qualification of nuclear facilities to higher seismic criteria; and finalizing the upgrade of a major nuclear facility is an iterative process, which continues throughout the construction of the upgrades.
Seismic upgrade design for an exhaust stack building
An exhaust stack building of a nuclear reactor facility with complex structural configuration has been analyzed and evaluated and retrofitted for seismic forces. The building was built in the 1950's and had not been designed to resist seismic forces. A rigorous analysis and evaluation program was implemented to minimize costly retrofits required to upgrade the building to resist high seismic forces. Seismic evaluations were performed for the building in its as-is configuration, and as modified for several upgrade schemes. Soil-structure-interaction, basemat flexibility and the influence of the nearby reactor building were considered in rigorous seismic analyses. These analyses and evaluations enabled limited upgrades to qualify the stack building for the seismic forces. Some of the major conclusions of this study are: a phased approach of seismic analyses, utilizing simplified models to evaluate practicable upgrade schemes, and, then incorporating the most suitable scheme in a rigorous model to obtain design forces for upgrades, is an efficient and cost- effective approach for seismic qualification of nuclear facilities to higher seismic criteria; and finalizing the upgrade of a major nuclear facility is an iterative process, which continues throughout the construction of the upgrades.
Seismic upgrade design for an exhaust stack building
M. E. Maryak (author) / L. E. Malik (author)
1991
11 pages
Report
No indication
English
Radiation Shielding, Protection, & Safety , Reactor Engineering & Nuclear Power Plants , Structural Analyses , Selected Studies In Nuclear Technology , Buildings , Nuclear Power Plants , Stacks , Reactor Safety , Seismic Effects , Design , Mechanical Structures , Modifications , Retrofitting , Soil-Structure Interactions , Meetings , EDB/220900 , EDB/220200
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